Zaynab Mohaghegh - PhD Student of Midwifery, Health Deputy, Department of Family Health, Tehran University of Medical Sciences, Tehran, Iran
Ziba Taghizadeh - a) Associate Professor, Department of Reproductive Health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran b) Nursing and Midwifery Care Research Center, Tehran University of Medical Sciences, Tehran, Iran
Parvin Abedi - Professor, Menopause Andropause Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Narjes Tavakolikia - Specialist of Preventive and Community Medicine, Department of Preventive and Social Medicine, Tehran University of Medical Science, Tehran, Iran
Ehsan Kazem Nezhad Leilie - Associate Professor, Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran
Farideh Homayoun Valiani - MSc in Medical Education, Health Deputy of Iran University of Medical Science, Tehran, Iran
Maryam Shahbazi Kasvaie - MSc in Midwifery, Health Deputy of Shahid Beheshti University of Medical Science, Tehran, Iran

Background & aim: COVID-۱۹ infection may adversely affect pregnancy outcomes. We aimed to assess the incidence rate of the COVID-۱۹ virus and its effect on maternaland neonatal outcomes.Methods: This was a cohort study in which a number of health-care centers in Tehran province were randomly selected, and all pregnant women referring to these centers were screened for COVID-۱۹ from April ۲۰۲۰ to July ۲۰۲۰. Out of ۱۵۵۲۰ pregnant women, ۲۶۳ individuals infected with COVID-۱۹, who were followed until delivery. To collect the data, a demographic and obstetric characteristics questionnaire and a maternal and neonatal outcome checklist were used. Data analysis was done by SPSS version ۲۲ using the Chi-square test, independent t-test, and logistic regression model.Results: The incidence of COVID-۱۹ among participants was ۱۷ per ۱۰۰۰ (۹۵% CI: ۱۵-۱۹). Women with a higher BMI (OR = ۱.۱۹۸, CI =۱.۰۰۳-۱.۴۳۱, P = ۰.۰۴۷) and lower blood oxygen level (OR= ۰.۸۸۶, CI: ۰.۸۰۸-.۹۷۰, P=.۰۰۹) were more likely to have adverse pregnancy outcomes. Preterm labor (۱۸.۳%) was the most common outcome of pregnancy, followed by stillbirth (۰.۸%), ICU admission (۳.۰%), maternal mortality (۱.۱%), need to mechanical ventilation (۱.۵%) and preeclampsia ۱(۰.۳۸). Regarding neonatal outcomes, neonatal COVID-۱۹ was seen in ۱.۹% of cases, NICU admission in ۱۵.۲%. Neonatal mortality without COVID-۱۹ in ۲.۳%.  The majority of neonates with complications were male (۲۹.۱% vs. ۲۱.۵%, (P= ۰.۰۰۲).Conclusion: Pregnant women had a lower COVID-۱۹ incidence rate than the general population, but when infected, they were at risk for poor maternal and neonatal outcomes.

pregnancy, incidence, Neonates Morbidity, Maternal Morbidity, COVID-۱۹